import java.io.FileNotFoundException;
import java.io.PrintStream;


public class RedirectOutputStream {
	public static void main(String[] args) {
		PrintStream out = System.out;
		PrintStream ps;
		try {
			ps = new PrintStream("./log.txt");
			System.setOut(ps);
			int age = 18;
			System.out.println("年龄变量成功定义，初始值为18");
			String sex = "女";
			System.out.println("性别变量成功定义，初始值为女");
			//整合两个变量
			String info = "这是个"+sex+"孩子，应该有"+age+"岁了。";
			System.out.println("整合两个变量为info字符串变量， 其结果是： "+info);
			System.setOut(out);
			System.out.println("程序运行完毕，请查看日志。");
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
}